Crystal Dynamics have no plans to release a demo pre-release for Tomb Raider, Karl Stewart global brand director, revealed on his Twitter:
"For all those @tombraider fans asking. There are no plans to release a demo of the game pre-launch. We don't want to spoil the story........"
Of course, there may still be a demo following the release of the game. Obviously there are ways to release a demo without spoiling much of the story, but it seems Crystal Dynamics are steering clear of that altogether.